multgee (version 1.0)

LORgee.control: Control For The GEE Solver

Description

Control function for the GEE solver in the nomLORgee and ordLORgee functions.

Usage

LORgee.control(tolerance = 0.001, maxiter = 15, verbose = FALSE, TRACE = FALSE)

Arguments

tolerance

positive convergence tolerance. The algorithm converges when the pairwise maximum of the absolute relative difference in parameter estimates is less than or equal to tolerance.

maxiter

positive integer that indicates the maximum number of iterations in the Fisher-scoring iterative procedure.

verbose

logical that indicates if output should be printed for each iteration.

TRACE

logical that indicates if the parameter estimates and the convergence criterion for each iteration should be saved.

See Also

nomLORgee and ordLORgee.

Examples

data(arthritis)
fitmod <- ordLORgee(y~factor(trt)+factor(baseline)+factor(time), id = "id", 
                    repeated = "time", data = arthritis)
A one-step GEE estimator
fitmod1 <- update(fitmod, control = LORgee.control(maxiter=1))
coef(fitmod)
coef(fitmod1)